Fedora 43 python3-docs Security Issues Advisory 2026-27ce708600
fedora
February 26, 2026
New minor version of the Python interpreter, bringing also security fixes
Summary
The python3-docs package contains documentation on the Python 3
programming language and interpreter.
Update Information:
New minor version of the Python interpreter, bringing also security fixes. 389-ds-base: Fix system index configuration issues 389-ds-base: Fix AttributeError: 'CustomHelpFormatter' object has no attribute '_format_actions_usage'
Topics Covered
Change Log
* Wed Feb 4 2026 Karolina Surma
References
[ 1 ] Bug #2424574 - 389-ds-base fails to build with Python 3.15: AttributeError: 'CustomHelpFormatter' object has no attribute '_format_actions_usage'
https://bugzilla.redhat.com/show_bug.cgi?id=2424574
[ 2 ] Bug #2431825 - CVE-2025-11468 python3.14: Missing character filtering in Python [fedora-43]
https://bugzilla.redhat.com/show_bug.cgi?id=2431825
[ 3 ] Bug #2431837 - CVE-2026-0672 python3.14: Header injection in http.cookies.Morsel in Python [fedora-43]
https://bugzilla.redhat.com/show_bug.cgi?id=2431837
[ 4 ] Bug #2431838 - CVE-2026-0865 python3.14: wsgiref.headers.Headers allows header newline injection in Python [fedora-43]
https://bugzilla.redhat.com/show_bug.cgi?id=2431838
[ 5 ] Bug #2431851 - CVE-2025-15282 python3.14: Header injection via newlines in data URL mediatype in Python [fedora-43]
https://bugzilla.redhat.com/show_bug.cgi?id=2431851
[ 6 ] Bug #2433829 - CVE-2026-1299 python3.14: email header injection...
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-27ce708600' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
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Name: python3-docs
Product: Fedora 43
Version: 3.14.3
Release: 1.fc43
Summary: Documentation for the Python 3 programming language
Topics Covered
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